9942772499 has 16 divisors (see below), whose sum is σ = 11023294560. Its totient is φ = 8892322560.

The previous prime is 9942772487. The next prime is 9942772513.

9942772499 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9942772499 - 2⁸ = 9942772243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9942972499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303197 + ... + 334385.

It is an arithmetic number, because the mean of its divisors is an integer number (688955910).

Almost surely, 2^9942772499 is an apocalyptic number.

9942772499 is a deficient number, since it is larger than the sum of its proper divisors (1080522061).

9942772499 is a wasteful number, since it uses less digits than its factorization.

9942772499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31670.

The product of its digits is 20575296, while the sum is 62.

The square root of 9942772499 is about 99713.4519460639. The cubic root of 9942772499 is about 2150.3170615152.

The spelling of 9942772499 in words is "nine billion, nine hundred forty-two million, seven hundred seventy-two thousand, four hundred ninety-nine".